Modify the copyright information in a Genesis child theme

modify-genesis-copyright.php

<?php
/**
* Modifies the copyright output in a genesis child theme. 
* Drop this function and filter into your child theme's functions.php file. 
* Don't include the opening php tag. 
*/

add_filter( 'genesis_footer_output', 'explore_footer_output', 10, 3);

function explore_footer_output( $output, $backtotop_text, $creds_text ) {
	$child_creds_text = 'Copyright ' . date( 'Y') . ' YOUR COMPANY';
	$output = str_replace( $creds_text, $child_creds_text, $output);

	return $output;
}